The first idea is decent enough, though having a subscription alone is not enough. Scalpers can use bots to create hundreds of accounts, subscribe for one month, buy the console and then resell it for massive profit. They'd have to make it so that people are subscribed for at least one year before they can order the console.
The second idea is literal suicide. First impressions matter, and the initial price point is part of that. Also, nothing would change from a consumer point of view. In the past, they paid premium in order to buy the console from scalpers, now they would be paying premium to buy it from the company.
The third idea is just way to risky from a financial point of view. I can't imagine any company taking such a massive initial loss without any guarantee that they'll make it back years later.